| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.77 | -0.06 |
| Feb | 0.91 | 0.98 | -0.07 |
| Mar | 1.84 | 1.93 | -0.09 |
| Apr | 2.72 | 2.76 | -0.04 |
| May | 2.80 | 3.17 | -0.37 |
| Jun | 1.88 | 1.96 | -0.08 |
| Jul | 1.84 | 1.74 | 0.10 |
| Aug | 1.73 | 1.72 | 0.01 |
| Sep | 1.53 | 2.01 | -0.48 |
| Oct | 1.37 | 1.57 | -0.20 |
| Nov | 1.06 | 1.14 | -0.08 |
| Dec | 0.71 | 0.77 | -0.06 |
19.10 | 20.52 | -1.42 |